Display: wind dir/speed + rain%, sunrise/sunset, wrap today, merge Coming up

- Today's hourly cards and the next-2-days 3-hourly cards now always show
  rain chance% and wind (compass direction + mph), not just rain% above a
  20% threshold. New wind_dir_deg column on forecast_points (Met Office
  windDirectionFrom10m / Open-Meteo winddirection_10m).
- New forecast_astro table: sunrise/sunset for today + next 2 days, shown
  next to each day's section label. No extra API calls needed — both
  providers' daily responses already carry sunrise/sunset for those dates,
  just weren't being extracted before.
- Today's hourly strip now sits in its own bordered block (wx-today-block)
  so it reads as a distinct group instead of blending into the cards below.
- "Next 2 days" no longer has its own separate heading — tomorrow and the
  day after now sit under the single "Coming up" label, same as days 4-7.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

backend/src/db.js

@@ -30,6 +30,7 @@ export async function initDb() {
       feels_like_c   NUMERIC,
       precip_prob    NUMERIC,
       wind_speed_mph NUMERIC,
+      wind_dir_deg   NUMERIC,
       icon           TEXT NOT NULL,
       condition_text TEXT,
       source         TEXT NOT NULL,
@@ -37,7 +38,18 @@ export async function initDb() {
       UNIQUE (resolution, ts)
     );
     CREATE INDEX IF NOT EXISTS forecast_points_res_ts_idx ON forecast_points (resolution, ts);
+
+    -- Sunrise/sunset for today + the next 2 days — shown next to each day's label
+    -- on the display. Only 3 rows at a time; replaced wholesale each refresh cycle
+    -- alongside forecast_points (see lib/weather-fetch.js's replaceAstro()).
+    CREATE TABLE IF NOT EXISTS forecast_astro (
+      date       TEXT PRIMARY KEY,
+      sunrise    TIMESTAMPTZ,
+      sunset     TIMESTAMPTZ,
+      fetched_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+    );
   `)
+
 }
 
 export async function getStatus() {